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seropon [69]
3 years ago
12

All cells are surrounded by a(n) _____

Biology
2 answers:
cluponka [151]3 years ago
5 0
Cell Membrane. Even cells with cell walls have a membrane
kondor19780726 [428]3 years ago
3 0
All cells are surrounded by a cell membrane if it is an animal or a plant cell. 
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Answer:

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We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the _________ group
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Answer: Option B) phosphate; hydroxyl; 3'

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